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HISTORY
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1991-11-02
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HISTORY of CHANGES to the Make program
Copyright ⌐ 1991 by Ben Eng
KEY:
-N New Feature
-B Bug Fix in program
-D Documentation
--
Nov 2, 1991
changes from 1.4 to 1.5
-B only recognize variable assignment command before macro expansion
otherwise, command lines containing an equal sign will not execute
-B the - command prefix to ignore error returns was broken
--
July 20, 1991 distributed 1.4 on Bix
changes from 1.3 to 1.4
-B changed all references of strcmp to stricmp
-B enforcer hits removed
-B version string conforms to style guide
--
July 7, 1991
changes from 1.2 to 1.3
-N variable assignments may now be done in command lines
-B the cd command would always be executed even if it appeared
within a conditional command construct.
-N at the suggestion of Peter da Silva, .ALWAYS, .NEVER,
.ONCE, .INVISIBLE
---
June 30, 1991
changes from 1.1 to 1.2
-B .INCLUDE directive may now be used inside a conditional
-B reassignment of a simple macro to an ordinary macro was broken
-D rewrote documentation in LaTeX
-N added the D and F macro extensions to automatic variables
---
June 16, 1991 distributed 1.1 on ab20.larc.nasa.gov [128.155.23.64]
changes from 1.0 to 1.1
-B when the primary goal has no commands, no applicable implicit
rules, and all of its dependencies are up to date, an error
of "don't know how to make" is issued; bug is fixed
-B added .PHONY directive to propagate the proper "up to date"
condition past a phony target rule
-D updated the documentation on incompatibilites
---
June 15, 1991
changes from 0.9 to 1.0
-N added pattern rules (yeah!!!)
-N replaced suffix rules with pattern rules
-B changed include directive to .INCLUDE for Sun Make compatibilty
-N added .DEFAULT rule
-N added exists(filename) and nexists(filename) conditions
-N conditional command execution in rules
-N added $(patsubst from,to,names) function call
-N $(subst ...) is now able to handle different size substitutions
-N double colon rules added but they are severely broken
---
June 10, 1991
changes from 0.8 to 0.9
-N at the suggestion of Mike Sinz, added the include directive
-B .SUFFIXES: is now a directive rather than a special target;
code has been moved from read.c to input.c
---
June 9, 1991 distributed 0.8 on Bix
changes from 0.7 to 0.8
-N bmake now runs (barely) under 1.3 without wildcard support
-N added $(sort names) function call
---
June 8, 1991
changes from 0.6 to 0.7
-N added the 'cd' command
-N added $(join list1,list2) function call
-N added $(dir names) function call
-N added $(notdir names) function call
-N added $(suffix names) function call
-N added $(getenv name) function call
-N added DEBUG preprocessor symbol to disable code generation
for debugprintf() and the printing of debugging information
for the -d option.
---
June 2, 1991 distributed 0.6 on ab20.larc.nasa.gov [128.155.23.64]
changes from 0.5 to 0.6
-B macro expansion in the arguments to eq() and neq() conditions
-B removed rawcon.c, so ^C breaks should work better
-N added $(words text) function call
-N added $(word n,text) function call
-N added $(firstword text) function call
-N added stubs for function calls that are not implemented
-N changed static storage to dynamic storage for reading the Makefile
-N the maximum line length can now be set as a parameter
-N function calls are now able to accept arguments up to MaxLine
in length
-N added ``pragma'' directive to specify command line arguments
for the Make program within the Makefile
-B removed enforcer hits; all were read-hits :-).
---
May 31, 1991 distributed 0.5 on Tardis BBS
changes from 0.4 to 0.5
-N conditionals
-B command line macro assignments are performed twice; once before
Makefile is read, and once before the Makefile is run
---
May 30, 1991
changes from 0.3 to 0.4
-B allow commas to be escaped with a backslash in function calls
-B $(subst) changed to work at any position; not just suffixes
-N added $(filter pattern,text) function call
-N added $(filter-out pattern,text) function call
-N added $(wildcard pattern) function call
-N added $(basename names) function call
-N added $(addsuffix suffix,names) function call
-N added $(addprefix prefix,names) function call
---
May 29, 1991 distributed 0.3 on ab20.larc.nasa.gov [128.155.23.64]
changes from 0.2 to 0.3
-D fixed the previous dates in the HISTORY file
-D fixed the documentation on simple variables
-B added better error detection for infinitely expanded macros.
-B fixed the macro expansion for variables that expand
to a value containing the character `$'
-B fixed the macro expansion for unknown variables
-N added function call capabilities to the macro expansion facility
-N added $(strip string) function call
-N added $(findstring find,in) function call
-N added $(subst from,to,text) function call
---
May 28, 1991 distributed 0.2 on Bix
changes from 0.1 to 0.2
-B added a check for out of memory in ben/scdir.c
-N parsing of command line macro=value definitions
---
May 27, 1991 distributed 0.1 on Tardis BBS
changes from 0.0 to 0.1
-N recursive macro expansions within variable name
references are now supported; ie. ${hello$(idx)}.
-B multiple expansions of the same variable was
incorrectly trapped as an infinitely recursive
macro expansion.
-B standard rules are now allowed to be defined as
builtin rules, without being selected as the
default target (goal) to be made.
-B when the Makefile does not end in an empty line
the last rule is thrown out.
---
May 26, 1991 limited local distribution
initial release 0.0
---